Lidstrom:Overlap Extension PCR
Back to Protocols
Janet is going to write up & illustrate some nice graphics for this! Stay tuned.
This method can be used for cloning. It can also be used to assemble neighboring fragments in Gibson into one piece.
- PCR with primers that yield overlapping ends.
- How much overlap?
- Gel purify
- Can sometimes only do a PCR cleanup if your bands are SUPER clean. You will get higher yield if you don't use a gel.
Sewing PCR Without Primers
- use template DNA
- Rxn concentrations
- Use Phusion buffer & standard Phusion dNTP concentration
- Set up an array of annealing temps and % DMSO.
- Thermocycling: Use Phusion polymerase with default concentrations.
- 98o</sub>C, 30sec
- 98o</sub>C, 10sec
- 58o</sub>C, 10sec
- 72o</sub>C, 30sec/kb
- Repeatsteps 2-4 29x NOTE: Justin Siegel/Janet Matsen only do 9x
- 72o</sub>C, 5min
- 4o</sub>C, forever
Use Primers on Gel-Purified "Sewing PCR" product